Cooler air returns today with rain moving in for Thursday.

Today's Forecast for Hamilton:

Variable skies with winds 20km/h at times with gusts to 40.
19°C

A cold front passed through the regions yesterday and that has dropped the temperature to slightly below seasonal values for today. Variable skies can be expected through the afternoon along with winds gusting to 40km/h at times. Today, expect a high of 19°C. Skies will be generally clear in the overnight period and winds will diminish and this will allow temperatures to drop to the mid single digits across the region. Likely to be the coldest night so far this season for centres away from the shores of the Great Lakes.

Sunshine will continue on Wednesday, however clouds will begin to increase through the afternoon hours as a system approaches bringing some much needed rain to the region on Thursday. Temperatures will be very cool on Thursday likely not surpassing the 15°C mark along with brisk easterly winds.

It's shaping up to be a cool weekend ahead as well with temperatrures into the mid-teens. There is the possibility of temperatures increasing to above normal values by the middle of next week as Southern Ontario will sit on the northern edge of some heat moving up from the United States. However any slight movement to the south and this would keep the cool temperatures over the region.

Taking a look at yesterdays temperatures across the region.

Toronto.......24     13
Hamilton.....24     11
London.......23     10
St. Kitts.......23     13
Kitchener....22       9
Muskoka.....21       9

Lots going on in the Tropics today with 3 named storms. Newly formed Tropical Strom Karl, Hurricane Igor and Hurricane Julia.